MiniDexed EuroRack PCB Build Guide

Here are the build notes for my MiniDexed EuroRack PCB Design. This is a DIY module only for use in my own DIY system. Do NOT use this alongside expensive modules in an expensive rack. It is highly likely to cause problems with your power supply and could even damage your other modules. Warning! I strongly … Continue reading MiniDexed EuroRack PCB Build Guide →

MiniDexed EuroRack PCB Design

I've seen a number of EuroRack format MiniDexed versions now, from 3D printed panels and designs, right through to commercial modules. It's something I've been meaning to do for a while, so this is my first attempt at a take on a 8HP EuroRack format MiniDexed using a Raspberry Pi Zero 2 W. This is … Continue reading MiniDexed EuroRack PCB Design →

Raspberry Pi Zero MIDI PCB Build Guide

Here are the build notes for my Raspberry Pi Zero MIDI PCB. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! If you are new to microcontrollers and single board computers, see the Getting Started pages. Bill of Materials Raspberry Pi Zero … Continue reading Raspberry Pi Zero MIDI PCB Build Guide →

Raspberry Pi Zero MIDI PCB

This is a MIDI interface for a Raspberry Pi Zero. It is designed to be stackable so it can be used with my RPi Zero MiniDexed IO Board PCB. Here is the Raspberry Pi Zero MIDI PCB Build Guide. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible … Continue reading Raspberry Pi Zero MIDI PCB →

RPi Zero MiniDexed IO Board PCB Build Guide

Here are the build notes for my RPi Zero MiniDexed IO Board PCB. Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! If you are new to microcontrollers and single board computers, see the Getting Started pages. Bill of Materials RPi Zero … Continue reading RPi Zero MiniDexed IO Board PCB Build Guide →

RPi Zero MiniDexed IO Board PCB Design

Having now found a way to use a Raspberry Pi Zero as a DX7 USB Dongle in a "headless" capacity I thought it would be useful to have a version of my MiniDexed Raspberry Pi IO Board suitable for use with the Zero. RPi Zero MiniDexed IO Board PCB Build Guide Warning! I strongly recommend using old … Continue reading RPi Zero MiniDexed IO Board PCB Design →

A DX7 USB Dongle

The amazing Rene Stange added USB Gadget (i.e. device) support to the Circle bare metal Raspberry Pi environment a while ago so I've now incorporated that into MiniDexed. This allows MiniDexed to be used as a USB device - i.e. it can just be plugged into a PC and used via USB MIDI directly, as … Continue reading A DX7 USB Dongle →

Raspberry Pi I2S Audio Interface

This post looks at how to use a cheap I2S digital to analog converter as the audio output interface for a Raspberry Pi V1 model B and a Raspberry Pi Zero V1. As I mentioned last time, there are a number of ready-made "off the shelf" add-on boards you can get for the Raspberry Pi … Continue reading Raspberry Pi I2S Audio Interface →

Raspberry Pi Zero PWM Audio Interface

The Raspberry Pi Zero (I'm talking about V1 here, with no wireless. At the time of writing, V2 has just been released and I've yet to have a play with that!) has capabilities on par with the first generation "full" Raspberry Pi, so I was keen to try my “Bare Metal” Raspberry Pi Synth on one. … Continue reading Raspberry Pi Zero PWM Audio Interface →